Manchester Particle Physics Seminars, Colloquia and Meetings

Anyssa Navrer-Agasson: Direct dark matter searches with the DarkSide LAr TPC

Friday, 6 March 2020 from to (Europe/London)
at Schuster ( 54-6-6.40 - Niels Bohr Common Room )
Only 5% of the energy content of the Universe is currently accessible to our instruments. In particular, many clues in the behaviour of astrophysical objects suggest that 25% of all Universe would be made of a yet to be observed dark matter. Many dark matter candidates have been proposed, but one of the most extensively studied is a class of particles named Weakly Interacting Massive Particles (WIMPs). 
DarkSide is a direct dark matter search experiment, aiming to detect collisions between WIMPs and target nuclei. The experiment uses a Dual-Phase Liquid Argon (LAr) Time Projection Chamber (TPC), a technology relying on a liquid argon target. LAr TPCs have many advantages, the main one being their incredible ability to discriminate between signal and background. DarkSide took data for three years at Laboratori Nazionali del Gran Sasso, and demonstrated the power of LAr for both high-mass (above ~100 GeV/c2) and low-mass (up to ~10 GeV/c2) WIMPs searches.
In this seminar, I will present DarkSide and its results, focussing on the low-mass WIMPs searches. I will also briefly discuss the next stage of the Darkside program.